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Taiwan Semiconductor Corporation SRT19HR0G
- Part No.:
- SRT19HR0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- T-18, Axial
- Datasheet:
-
SRT19HR0G.pdf
- Description:
- DIODE SCHOTTKY 90V 1A TS-1
- Quantity:
- Payment:
- Shipping:
Inventory:5,513
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Product details
Overview
SRT19HR0G from Taiwan Semiconductor is a 1 A, 90 V repetitive peak reverse voltage Schottky barrier rectifier in TS-1 package, featuring low forward voltage drop (0.80 V at 1 A, 25°C), high surge current capability (25 A, 8.3 ms), and AEC-Q101 qualification for automotive-grade reliability. It serves as a primary output rectifier in compact DC/DC converters requiring high efficiency and thermal robustness.
For engineers reviewing the SRT19HR0G datasheet, SRT19HR0G pinout, SRT19HR0G application, or SRT19HR0G equivalent, key selection criteria include its 90 V VRRM, 25 A IFSM, 125°C maximum junction temperature, TS-1 package thermal resistance (50°C/W), and AEC-Q101 qualification status - all critical for automotive power supply design validation.
Technical Context
The SRT19HR0G implements a single-die Schottky structure with guard ring overvoltage protection, enabling stable operation under transient voltage stress. Its 28 pF junction capacitance at 1 MHz and 4.0 V reverse bias supports high-frequency switching up to several hundred kHz without excessive capacitive losses.
Thermal performance is defined by a junction-to-ambient thermal resistance of 50°C/W in standard mounting conditions, and it operates across a junction temperature range of –55°C to +125°C - validated per AEC-Q101 stress test requirements including temperature cycling, HTRB, and HTGB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 90 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in flyback or buck converter secondary-side applications |
| IF | 1 A continuous - Rated average forward current; determines steady-state power dissipation and heatsink sizing |
| IFSM | 25 A (8.3 ms half-sine) - Peak non-repetitive surge rating; ensures survivability during input line transients or startup inrush |
| VF | 0.80 V max at 1 A, 25°C - Low conduction loss enables >92% efficiency in 12 V–24 V output DC/DC stages |
| IR | 100 µA max at 90 V, 25°C - Low leakage preserves standby power budget in always-on automotive modules |
| CJ | 28 pF at 1 MHz, 4.0 V - Minimizes switching node ringing and EMI in high-frequency SMPS designs |
| TJ max | 125°C - Junction temperature limit aligned with AEC-Q101 Grade 1 automotive qualification |
Pinout & Package
TS-1 package: surface-mount, single-anode/single-cathode configuration with cathode band marking; lead-free, pure tin-plated terminals compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., transformer secondary center-tap or switch node return) |
| Cathode | Forward current exit point | Connected to output rail; polarity marked by visible cathode band on package body |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood environments including temperature cycling, high-temp reverse bias, and humidity testing |
| Guard ring structure | Prevents premature edge breakdown under voltage transients, improving long-term reliability in noisy power rails |
| Low VF / high IFSM ratio | Enables compact thermal design: 0.80 V drop at 1 A with 25 A surge margin reduces need for parallel devices |
| UL 94V-0 molding compound | Ensures flame-retardant enclosure integrity in enclosed automotive ECUs and ADAS modules |
| Halogen-free construction | Complies with IEC 61249-2-21 for environmentally regulated automotive supply chains |
Applications
| Automotive Body Control Module (BCM) | Industrial DC/DC Converter |
|---|---|
Use Scenario: 12 V input to 5 V/3.3 V auxiliary rail conversion in BCMs powering door locks, lighting, and sensors. IC Role / Device Role / Timing Role: Output rectifier in synchronous or asynchronous buck converter stage. Use Value: AEC-Q101 qualification and 125°C TJ max ensure uninterrupted operation in engine bay-adjacent locations. | Use Scenario: Secondary-side rectification in isolated 48 V–12 V industrial DC/DC modules for factory automation I/O. IC Role / Device Role / Timing Role: Unidirectional current path with minimal conduction loss and fast recovery. Use Value: 25 A IFSM withstands repeated load-step transients common in PLC power distribution. |
| USB-C Power Delivery Adapter | Telecom Remote Radio Unit (RRU) |
Use Scenario: High-efficiency 20 V output rectification in compact USB-C PD adapters targeting 65 W output. IC Role / Device Role / Timing Role: Primary output Schottky rectifier in active-clamp forward or LLC resonant topology. Use Value: 0.80 V VF reduces conduction loss by ~15% vs. comparable 100 V Si diodes, improving thermal headroom in sealed enclosures. | Use Scenario: Bias rail rectification for RF amplifier bias sequencing in outdoor telecom RRUs. IC Role / Device Role / Timing Role: Reverse-voltage-protected DC feed path with low leakage. Use Value: 100 µA IR at 90 V prevents standby current drift in wide-temperature (-40°C to +85°C ambient) deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-1EWH09-M3/5AT | Same 1 A / 90 V rating, but TO-277A package (higher RθJA = 65°C/W); no AEC-Q101 listing | Not qualified for automotive underhood use; suitable for commercial-industrial only | Select when cost sensitivity outweighs automotive qualification and thermal constraints allow larger footprint |
| ON Semiconductor SB190 | 1 A / 90 V, DO-214AC package; VF = 0.85 V max; no AEC-Q101, TJ max = 125°C | Lacks automotive qualification and guard ring; higher VF increases conduction loss | Consider for non-automotive legacy designs where TS-1 footprint compatibility is not required |
Compared with VS-1EWH09-M3/5AT and SB190, the SRT19HR0G uniquely combines AEC-Q101 qualification, TS-1 package (50°C/W thermal resistance), and 0.80 V VF - making it the only option among the three validated for automotive power supply rectification with constrained thermal budgets.
Availability
SRT19HR0G is available at Aetrix Electronics and suitable for automotive body control modules, industrial DC/DC converters, USB-C power delivery adapters, and telecom remote radio units requiring stable component supply with full traceability and lifecycle support.
Supply support for SRT19HR0G includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power rectifiers, TVS diodes, and MOSFETs for industrial and automotive markets.
The SRT19HR0G belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-reliability 12 V–48 V automotive and industrial power conversion where low VF, surge robustness, and thermal stability are critical.
FAQ
What is the maximum junction temperature rating for SRT19HR0G?
The SRT19HR0G has a maximum junction temperature (TJ) rating of +125°C, verified per AEC-Q101 stress testing protocols including high-temperature reverse bias (HTRB) and temperature cycling. This rating applies across its full operating voltage range and supports deployment in under-hood automotive environments where ambient temperatures reach 105°C.
Is SRT19HR0G pin-compatible with other TS-1 Schottky rectifiers like SRT15HR0G?
Yes, SRT19HR0G shares identical TS-1 package dimensions, anode/cathode terminal layout, and polarity marking (cathode band) with all SRT1xHR0G variants. Mechanical and soldering compatibility is maintained across the family, though electrical parameters - especially VRRM (90 V) and VF (0.80 V) - differ per voltage grade.
Does SRT19HR0G meet RoHS and halogen-free requirements?
Yes, SRT19HR0G complies with RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21. The molding compound is UL 94V-0 rated, and terminals are pure tin-plated, meeting J-STD-002 solderability and JESD201 Class 2 whisker resistance standards.
What is the reverse leakage current specification for SRT19HR0G at elevated temperature?
At 90 V reverse voltage and 125°C junction temperature, the SRT19HR0G exhibits a maximum reverse leakage current (IR) of 2 mA, as specified in the "ELECTRICAL SPECIFICATIONS" table. At 25°C and 90 V, IR is limited to 100 µA - critical for low-quiescent-current designs.
How is AEC-Q101 qualification reflected in the SRT19HR0G part number?
The "H" suffix in SRT19HR0G explicitly denotes AEC-Q101 qualification per the manufacturer's ordering code convention. Per Taiwan Semiconductor's documentation, "SRT1xH" and "SRT1xHA0G" variants are fully tested and certified to AEC-Q101 Rev D requirements, including stress tests for temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing.
SRT19HR0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 90 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 800 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 90 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TS-1
- Operating Temperature - Junction:
- -55°C ~ 150°C
SRT19HR0G FAQ
1.How can I place an order for SRT19HR0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SRT19HR0G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SRT19HR0G reliable?
The price and inventory of SRT19HR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SRT19HR0G is usually 5 days.
3.What payment methods are accepted for SRT19HR0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SRT19HR0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SRT19HR0G?
SRT19HR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SRT19HR0G order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SRT19HR0G?
For technical support, including SRT19HR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SRT19HR0G requirements.
6.How does Aetrix verify that SRT19HR0G is sourced from the original manufacturer or authorized distributors?
All SRT19HR0G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SRT19HR0G meets industry standards.
7.What is the process for return or replacement of SRT19HR0G?
All SRT19HR0G units undergo pre-shipment inspection (PSI). If there is an issue with SRT19HR0G, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SRT19HR0G part is unused and in its original packaging.
Return procedure for SRT19HR0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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